Fixing method for electric cabinet of coal mining machine and fixing structure for electric cabinet of coal mining machine

Abstract

The invention relates to a fixing method for an electric cabinet of a coal mining machine and a fixing structure for the electric cabinet of the coal mining machine. In particular, a first guiding inclined surface extending left and right is arranged at the front portion of the bottom plate in the frame, a notch is arranged at the rear port portion of the frame, the electric cabinet is pushed intothe frame from back to front such that a second guiding inclined surface extending left and right at the front end of the electric cabinet is pressed tightly with the first guiding inclined surface and that the flange at the rear edge of the electric cabinet is just embedded in the notch in upper, lower, left and right directions and cooperates with the notch, the front end and the rear end of the frame respectively correspond to the coal wall side and the old pond side of the coal mining machine, the screw group for fixing the cabinet body and the frame on the coal wall side is eliminated, only the screw group for fixing the cabinet body and the frame on the old pond side is used, and the screw group is connected at the flange and the notch in the front-rear direction. The fixing methodand fixing structure are more securely fixed, and intuitive, convenient and fast in installation, inspection and maintenance.

Description

technical field [0001] The invention relates to a fixing structure of an electric control box of a coal mining machine, belonging to the technical field of mining equipment. Background technique [0002] At present, the commonly used fixing method for the electric control box on the shearer is to push the electric control box axially into the frame first, and then use screw groups to fix the electric control box in the frame from bottom to top on the coal wall side and the old pond side. When installing the screw group, it is necessary to frequently adjust the position of the electric control box to find the threaded holes on the body of the electric control box, and it is difficult to install the screw group. The connection between the electric control box and the frame is completely dependent on the screw group. When the coal in the working face is hard, there is gangue, there is a fault, there is a large impact of ground pressure, etc., the shearer will appear during the ...

AI Technical Summary

Problems solved by technology

When installing the screw group, it is necessary to frequently adjust the position of the electric control box to find the threaded holes on the box body of the electric control box. It is difficult to install the screw group

The connection between the electric control box and the frame is completely dependent on the screw group. When the coal in the working face is hard, there is gangue, there is a fault, there is a large impact of ground pressure, etc., the shearer will appear during the coal mining process. Frequent vibration may easily cause the screw group to loosen; at this time, since the screw group is installed on the side of the coal wall and the old pond side, and is installed in the up and down direction, the loosening of the screw group is not easy to be found, and it is not convenient to repair and maintain; if the screw group is loose If it is not discovered in time, the electric control box vibrates greatly during the coal mining process, which may cause damage to electrical components, and even the electric control box will cut off the screw group and break away from the frame, causing production accidents

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